Transactions on Engineering and Computer Science
Dynamic Reliability Assessment Under Seismic Load of a Continuous Rigid Frame Bridge Based on Simulation Analysis and Monitored Strain Data
Zou Gang , Cai Lurong, Li Yinghua, Peng Kesheng, He Junyong, and Shuai Qiangjun
Abstract
People have noticed that earthquake is the most destructive natural phenomenon to bridges. So, doing dynamic reliability assessment under seismic load of the bridge during in service has great significance. The most difficult thing is how to assess the safety influence of seismic load to bridges. Therefore, we take a large-span continuous rigid frame bridge as the background bridge, based on the monitored strain data collected from the structural health monitoring system (SHMS) of the bridge during in service and 3-D FEM technology, we suggest a dynamic reliability evaluation methodology in this article to evaluate the safety influence of seismic load to the background bridge during in service stage. Firstly, with using the large amount of the monitored strain data, the quasi dynamic reliability near the sensor is acquired; furthermore, by using 3-D FEM method, the simulation model of the background bridge is built and the dynamic reliability under 6 seismic intensity with different middle-span web plates were analyzed and calculated. Through comparative analysis and discussing, we get the influence degree of seismic load on the reliability of the bridge. This method can provide reference for seismic design of the bridge.
Keywords: Continuous rigid frame bridge; Dynamic reliability assessment; Seismic Response; Structural health monitoring; and 3-D FEM model.
Journal Information
- Journal Name: Transactions on Engineering and Computer Science
- Journal Short Name: Trans Eng Comput Sci
- Language: English
- Format of Publication: Online
- Starting Year: 2020
- Focus Subject: Engineering and Computer Science
- Publication Model: Online
- Frequency of Publication: Two Issue a Year
- Review Process: Single blind peer-review by referees
- Time to 1st Decision: 2 to 3 weeks from date of submission
- Time to Acceptance: 4 to 6 weeks, depending upon the required revision cycles
- Time to Publication: 1 to 3 weeks from date of final submission in the forthcoming issue
- DOI Prefix: 10.7620
Indexed and Abstracted In
